C4 Let B = {₁,...,V) be a set of vectors in R". Prove that if v₁ = Ổ for some i, then B is linearly dependent.

Answers

Answer 1

In this question, we are given a set of vectors B in [tex]R_{n}[/tex] and we need to prove that if there exists a vector v_i in B such that v_i is the zero vector, then the set B is linearly dependent.

To prove that if v_i is the zero vector for some i, then the set B is linearly dependent, we need to show that there exist scalars c_1, c_2, ..., c_n (not all zero) such that the linear combination c_1v_1 + c_2v_2 + ... + c_nv_n equals the zero vector.

Since v_i is the zero vector, we can choose c_i = 1 and c_j = 0 for j ≠ i. Then, the linear combination becomes c_1v_1 + c_2v_2 + ... + c_nv_n = v_i, which is the zero vector.

This implies that we have found a nontrivial linear combination of the vectors in B that equals the zero vector. Therefore, B is linearly dependent.

The reason behind this is that the presence of the zero vector in a set of vectors automatically guarantees linear dependence. Any set containing the zero vector can be linearly dependent because we can always choose the scalar coefficient of the zero vector to be non-zero, resulting in a nontrivial linear combination equaling the zero vector.

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Related Questions

a. Compute the similarity dimension of the fractal. Round to the nearest thousandth. The Cantor point set, defined by the following stages. b. Compute the similarity dimension of the fractal. Round to the nearest thousandth. The Sierpinski carpet, variation 1, defined by the following stages.

Answers

The similarity dimension of the Cantor point set is approximately 0.631, while the similarity dimension of the Sierpinski carpet, variation 1, is approximately 1.893.

Cantor point set: First Stage - The interval is divided into three equal parts.

Second Stage - The middle third of the first and third intervals are removed.

Third Stage - The middle third of the remaining intervals is removed.

This process is continued infinitely to create the Cantor set. The Cantor set is a fractal that is self-similar, meaning that each part of the fractal looks like the entire fractal.

To find the similarity dimension of the Cantor set, we will use the following formula:

log(2)/log(3) ≈ 0.631

log(8)/log(3) ≈ 1.893

The similarity dimension of the Cantor point set is approximately 0.631, while the similarity dimension of the Sierpinski carpet, variation 1, is approximately 1.893.

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NEED ASAP

A company rents out 16 food booths and 29 game booths at the county fair. The fee for a food booth is $200 plus $4 per day. The fee for a game booth is $95 plus $7 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.

The expression is...

Answers

Answer:

204x+102y=p

Step-by-step explanation:

204x+102y=p

204(16)+102(29)=$6,222

Can anyone help please ?!?! I’ll mark brainlist

Answers

Answer:

1/ 12

Step-by-step explanation:

Answer:

well i think it is number 2 but i really dont know sorry

Step-by-step explanation:

Select the correct answer.
Jonathan has 30 chocolates. He gives some chocolates to his friend David. He then gives Sarah half the number of chocolates that he gave David and gives Lily two-thirds of what he gave David. After giving away the chocolates, Jonathan has 4 chocolates left. If the number of chocolates Jonathan gives David is x, which equation represents the situation? How many solutions does this equation have?
A.
, which has no solution
B.
, which has infinitely many solutions
C.
, which has one solution
D.
, which has one solution
E.
, which has no solution
Reset Next

Answers

Answer:

A

Step-by-step explanation:

A school fundraiser is selling pumpkins. They charge an amount per pumpkin, plus a flat fee. If 2 pumpkins cost $12, and 5 pumpkins cost $27, how much would 10 pumpkins cost? *
$42
$52
$54
$60

Answers

i’m pretty sure it is 52.

Answer:

42

Step-by-step explanation:

Derive the formula for the MLE estimator of the variance of the
error term.

Answers

The formula for the maximum likelihood estimator (MLE) of the variance of the error term can be derived by maximizing the log-likelihood function.

Set up the model and log-likelihood function

Consider a regression model where we have a dependent variable (Y) and independent variables (X) with an error term (ε). We assume that ε follows a normal distribution with mean 0 and variance σ². The model can be written as Y = βX + ε.

To derive the MLE estimator of σ², we start by writing the log-likelihood function. Since the error terms are assumed to be independent and normally distributed, the log-likelihood function can be expressed as:

ln(L) = -n/2 * ln(2π) - n/2 * ln(σ²) - (1/2σ²) * ∑(Yi - βXi)²

where n is the sample size and the sum is taken over all observations.

Maximize the log-likelihood function

To find the MLE estimator, we need to maximize the log-likelihood function with respect to σ². We do this by taking the derivative of the log-likelihood function with respect to σ^2 and setting it equal to zero.

d(ln(L))/d(σ²) = -n/(2σ²) + (1/2σ⁴) * ∑(Yi - βXi)² = 0

Simplifying this equation gives us:

σ² = (1/n) * ∑(Yi - βXi)²

Thus, the MLE estimator for the variance of the error term is the average of the squared residuals.

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The value of a computer is decreasing at a rate that is proportional at any time to the value of the computer at that time The computer is worth 8850 initially; and it is worth S306 after 2 years. How much will the computer be worth after 5 years? Choose answer: $0
$66
$69

Answers

The value of a computer is decreasing at a rate that is proportional at any time to the value of the computer at that time The computer is worth 8850 initially, and it is worth S306 after 2 years. Then $66 will the computer be worth after 5 years.

To solve this problem, we can use the concept of exponential decay, where the value of the computer decreases exponentially over time.

Let's denote the value of the computer at any time t as V(t). We know that the rate of decrease is proportional to the value at that time. This can be expressed as:

dV/dt = k × V(t)

where dV/dt represents the rate of change of V with respect to t, and k is the proportionality constant.

To find the value of k, we can use the initial condition. The computer is worth 8850 initially, so we have:

V(0) = 8850

After 2 years, the computer is worth $306, so we have:

V(2) = 306

Now we can solve for k. Integrating the differential equation, we get:

∫(1 / V(t)) dV = ∫k dt

ln(V(t)) = kt + C

Taking the exponential of both sides, we have:

V(t) = e^(kt+C)

Since V(0) = 8850, we can substitute these values into the equation to solve for C:

e^(k × 0 + C) = 8850

e^C = 8850

C = ln(8850)

Now we have the equation:

V(t) = e^(kt + ln(8850))

Using the value V(2) = 306, we can substitute these values into the equation:

306 = e^(2k + ln(8850))

Taking the natural logarithm of both sides, we get:

ln(306) = 2k + ln(8850)

Solving for k:

k = (ln(306) - ln(8850)) / 2

Now, to find the value of the computer after 5 years (V(5)), we substitute t = 5 into the equation:

V(5) = e^(5k + ln(8850))

Calculating the value using the previously found value of k:

V(5) = e^(5 × [(ln(306) - ln(8850)) / 2] + ln(8850))

After evaluating this expression, we find that the value of the computer after 5 years is approximately $66. Therefore, the correct answer from the provided options is $66.

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After placing an equation into his calculator Rob got the following table. He then determents the x=6 when f(x)=-4 Is he correct Explain

Answers

Answer:

no

Step-by-step explanation:

From the table

when f(x) = - 4, then x = 2

help pls i’ll name u brainiest

Answers

f(x) = 3x + 2
f(x + 3) = 3(x+3) + 2
f(x+3) = 3x + 9 + 2
f(x+3) = 3x + 11 (Answer)

lance bikes 18 miles in 3 hours. how many miles does lance bike in 1 hour?

Answers

Answer:

6 miles

Step-by-step explanation:

Set up a proportion, where x is the number of miles he bikes in 1 hour:

[tex]\frac{18}{3}[/tex] = [tex]\frac{x}{1}[/tex]

Cross multiply and solve for x:

3x = 18

x = 6

So, he bikes 6 miles in 1 hour

Answer:

6 miles

Step-by-step explanation:

:)

Is 3 1/2 an irrational number?​

Answers

Answer:

yes

Step-by-step explanation:

The function f(x) = (x - 4)(x - 2) is shown below. What is true about the domain and range of the function?​

Answers

Answer:

[tex]Dom\{f(x)\} = \mathbb{R}[/tex] (Since polinomial functions are continuous)

[tex]Ran\{f(x)\} = [-1, +\infty)[/tex] (As this quadratic function has an absolute minimum, represented by its vertex)

Step-by-step explanation:

Graphically speaking, quadratic functions are represented by parabolas. In this case, we have a parabola in factorized form. From Theory of Functions, we get that domains of function represents the set of values of [tex]x[/tex] so that exist an image, whose set is known as range is represented by values of [tex]f(x)[/tex].

[tex]x[/tex] is represented by horizontal axis in the figure, whereas [tex]f(x)[/tex] is represented by the vertical axis. By using this approach we get that domain and range of the function are, respectively:

[tex]Dom\{f(x)\} = \mathbb{R}[/tex] (Since polinomial functions are continuous)

[tex]Ran\{f(x)\} = [-1, +\infty)[/tex] (As this quadratic function has an absolute minimum, represented by its vertex)

Five times a number subtracted from twelve is triple the number. Find the number

Answers

Answer:

1.5

Step-by-step explanation:

Let the unknown number be x.

12 - 5x = 3x

12 = 3x + 5x = 8x

. : x = 12/8 = 3/2 = 1.5

A grocery store owner sells tangerines in 2/5 kg bags. bought 4 kg of tangerines for a school party. How many bags did he buy?​

Answers

Answer:

10 bags

Step-by-step explanation:

To have 4 kg, he would need 20/5 kg. Each bag is 2/5, so 2/5 times 10 is 20/5 or 4 kg

Need some help on one question for geometry!

Answers

It’s 40 there you go

Answer:

AB = 23

Step-by-step explanation:

AC = AB + BC

(7x + 6) = (6x - 1) + (4x - 5)

7x + 6 = 6x - 1 + 4x - 5

7x + 6 = 10x - 6

-3x+ 6 = -6

-3x = -12

x = 4

AB = 6x - 1

     = 6(4) - 1

     = 24 - 1

     = 23

In which situation is the distance traveled proportional to time?

Answers

When speed is constant, distance traveled is directly proportional to the time. As the formula tells:

Speed = Distance / Time

So, if speed is constant, and you are increasing distance then time will increase, in order to keep the speed constant

Could somebody gives me the answer for this, thanks.

(WILL GIVE BRAINLIEST AFTER I FIGURE OUT HOW TO DO IT)

Answers

0.444444
And it goes on



Find the slope on this graph?????

Answers

Answer:

use the y=mx + b method

rise over fun

Answer:

-4/3

Step-by-step explanation:

Like the other person said, rise up 4 and 3 to the left. Line is going from left to right so it's negative.

What is the value of x in the equation below? Round to the nearest hundredths place.
0.45 (x + 1.6) + 5 x = 18
a.3.01
b.3.17
c.36.44
d.38.4

Answers

Answer:

3.17

Step-by-step explanation:

Just took the quiz

Answer:

the answer 'b'

Step-by-step explanation:

Round each mixed number to the nearest whole number. Then, estimate the sum.

14 11/12 + 3 1/6 ​

Answers

Answer:

18

Step-by-step explanation:

14 11/12 rounds to 15, and 3 1/6 rounds to 3. 3 plus 15 is 18.

The sum of Micah’s age and Aria’s age is 29. Aria is 5 years older than twice Micah’s age. Let x represent Micah’s age. The equation that can be used to find Micah’s age is

Answers

Answer:

B) x+(2x+5)=29

Step-by-step explanation:

Micah = x

Aria =2x+5

x+(2x+5)=29

What are the x-intercept and the y-intercept of the graph of 12x – 4y = 48?

Answers

Answer:

The x-intercept and the y-intercept of the graph of 12x-4y=48 is 6.

Step-by-step explanation:

I used trial and error. I substituted x and y with 6 to get the answer.

12(6)-4(6)=48

Using suitable identity, find the value of 87^3+ 13^3/
87^2 −87 ×13 + 13^2

Answers

The value of the given expression [[tex]87^3+ 13^3/87^2 -87 * 13 + 13^2[/tex]] by simplifying the numerator and denominator using suitable identities is 100.

We will first calculate the numerator:

As  ([tex]a^3[/tex] + [tex]b^3[/tex]) = (a + b)([tex]a^2[/tex] - ab + [tex]b^2[/tex]) :

[tex]87^3[/tex] + [tex]13^3[/tex] = (87 + 13)([tex]87^2[/tex] - [tex]87 * 13[/tex] + [tex]13^2[/tex])

= 100([tex]87^2[/tex] - 87 * 13 + [tex]13^2[/tex])

Now, calculate the denominator:

[tex]87^2 - 87 * 13 + 13^2[/tex]

As,([tex]a^2 -2ab +b^2[/tex]) =[tex](a - b)^2[/tex]:

[tex]87^2 - 87 * 13 + 13^2 = (87 - 13)^2[/tex]

[tex]= 74^2[/tex]

So by solving the equation further:

[tex](87^3+13^3) / (87^2- 87 * 13+13^2) = 100*(87^2- 87 *13 + 13^2)/(87^2 - 87 * 13 + 13^2)[/tex]

As we can see the numerator and denominator are the same expressions ([tex]87^2 - 87 * 13 + 13^2[/tex]). so, they cancel each other:

[tex](87^3 + 13^3) / (87^2 - 87 * 13 + 13^2) = 100[/tex]

So, the value of the given expression is 100.

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what two positive real numbers whose product is 11 have the smallest possible sum?

Answers

The two positive real numbers with a product of 11 that have the smallest possible sum are √11 and √11. In decimal form, these numbers are approximately 3.3166 and 3.3166.

To determine two positive real numbers whose product is 11 and have the smallest possible sum, we can use the concept of the arithmetic mean-geometric mean inequality.

Let the two numbers be x and y.

We have the following conditions:

1. xy = 11 (product of the two numbers is 11)

2. x > 0, y > 0 (both numbers are positive)

According to the AM-GM inequality, the arithmetic mean of two numbers is always greater than or equal to the geometric mean of those numbers.

Using this inequality, we have:

(x + y)/2 ≥ √(xy)

Substituting the value of xy as 11, we get:

(x + y)/2 ≥ √11

To minimize the sum (x + y), we need to make it as close as possible to the right side of the inequality.

This occurs when equality holds, that is, when:

x = y = √11

So, the answer is approximately (3.3166, 3.3166).

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Jeanette makes and sells greeting cards. She uses 18 square inches of paper for each card. How many square feet of paper does she need to make 150 cards?

Answers

Answer: 2700 square inches

Step-by-step explanation:

From the question, we are informed that Jeanette makes and sells greeting cards and that she uses 18 square inches of paper for each card.

To calculate the number of square feet of paper that she need to make 150 card, we multiply 150 by 18 square inches. This will be:

= 150 × 18 square inches

= 2700 square inches

A soft-drink machine can be regulated so that it discharges an average of ? oz. per cup. If the ounces of fill areNormally distributed with a standard deviation of 0.4 oz., what value should ? be set at so that 98% of 6-oz. cups will not overflow?
A. 5.18
B. 6.00
C. 6.18
D. 6.60
E. 6.82

Answers

The value of the unknown should be set at 5 so that 98 of 6- oz. mugs won't overflow is A)5.18.

Given data

A soft- drink machine can be regulated so that it discharges an normal of? oz. per mug. The ounces of filler are typically distributed with a standard divagation of0.4 oz.

What value should be set at so that 98 of 6- oz. mugs won't overflow?

Let μ be the mean ounces of filler per mug.

μ can be attained by using the formula

μ = 6 oz. = 6/8 = 0.75 mugs.

Now, given σ = 0.4 oz.

The Z- score for a 6- oz mug can be calculated as follows

z = ( x- μ)/ σ

Then, x = 6 oz = 6/8 = 0.75 mugs.

μ = 0.75 mugs

σ = 0.4 oz.

z = (0.75-0.75)/0.4 = 0

For 98 of 6- oz mugs to not overflow, we need to find the value of μ similar that P( z Since the Normal distribution is symmetric about the mean, we have

P( 0< z We can look up the value of

z_score for P( 0< z

standard normal distribution table or use the inverse function on a calculator similar as Excel.

Using a table, we get the value ofz_score = 2.33.

Now, z = ( x- μ)/ σ2.33 = (0.75- μ)/0.4

μ = 0.75-0.4 ×2.33

μ = 0.75-0.932

μ = -0.182 oz.6 oz in terms of ounces = 6 *0.125 = 0.75 oz.

oz per mug in terms of ounces = ? *0.125 oz.

Using the values from above

μ = -0.1820.75 = 0.568 oz. ≈0.57 oz.

= 0.57/0.125 = 4.56 or 5

So, the value of the unknown should be set at 5 so that 98 of 6- oz. mugs won't overflow is A)5.18.

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can someone help me find the slope intercept of this ?

2x-8y=16

Answers

Answer:

The answere is y= 1/4x-2

Step-by-step explanation:

subtract 2x from both sides to get -8y=-2x+16

then divide -8 on all terms to get y=2/8x-2

then simplify the 2/8 to get y=1/4x-2

Juan had 5/7 of a spool of yarn. He used 5/5 of his yarn for a project. What fraction of the spool was used for the project?

Answers

Answer:

2/5

Step-by-step explanation:

You see he had 7/5 wich equals 1 2/5 who used 2/5 so subtract 2 and you have 1 whole left.

a. Analyze the number of dark triangles. Describe the pattern.​

Answers

we need a picture to answer this...

how do I graph a equation using y= ⅕+3?​

Answers

Answer: The y intercept (3) goes 3 up in the y axis.

To find the slope (rise/run), we start from the point we found at the y intercept ( which is 3). So we rise 1 (from the 3), and run 5.  

(always run to the right)

The file is a picture of your equation.

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